disas: Remove target_words_bigendian() call in initialize_debug_target()

All CPUClass implementating disas_set_info() must set the
disassemble_info::endian value.

Ensure that by setting %endian to BFD_ENDIAN_UNKNOWN before
calling the CPUClass::disas_set_info() handler, then asserting
%endian is not BFD_ENDIAN_UNKNOWN after the call.

This allows removing the target_words_bigendian() call in disas/.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20250210212931.62401-11-philmd@linaro.org>

Author: philmd

disas/disas-common.c

@@ -7,7 +7,6 @@
 #include "disas/disas.h"
 #include "disas/capstone.h"
 #include "hw/core/cpu.h"
-#include "exec/tswap.h"
 #include "disas-internal.h"
 
 
@@ -61,15 +60,12 @@ void disas_initialize_debug_target(CPUDebug *s, CPUState *cpu)
 
     s->cpu = cpu;
     s->info.print_address_func = print_address;
-    if (target_words_bigendian()) {
-        s->info.endian = BFD_ENDIAN_BIG;
-    } else {
-        s->info.endian =  BFD_ENDIAN_LITTLE;
-    }
+    s->info.endian = BFD_ENDIAN_UNKNOWN;
 
     CPUClass *cc = CPU_GET_CLASS(cpu);
     if (cc->disas_set_info) {
         cc->disas_set_info(cpu, &s->info);
+        g_assert(s->info.endian != BFD_ENDIAN_UNKNOWN);
     }
 }